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San Diego County

Situated in Southern California, San Diego is a port city with a mild, sunny climate year-round.

The County of San Diego (COSD) Health and Human Services Agency (HHSA) provides vital health and social services to over 3.3 million residents across 18 cities, 18 federally recognized tribal reservations, 16 major naval and military installations, and 64 unincorporated areas. More than one in every three county residents is a direct recipient of their services each year, emphasizing HHSA’s critical role in ensuring the health and well-being of the region.

Snapshot

POPULATION

1,381,162
SQUARE MILES

342.5
TRANSIT SCORE

37
PER CAPITA HOUSEHOLD INCOME

$51,368

Urban Health Agenda

Our vision for the future of urban health looks beyond health care. Government and community organizations work together to make our wider environments safer, healthier, and more equitable.
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City Health Data

Explore more than 120 health metrics for this city on our Big Cities Health Inventory data platform.